Figure 15. Postdrilling interpretation for local seismic profile AGSO 125-4, across Site 1172,
showing broad ages and lithostratigraphic units. Drilling directly dated the three upper
unconformities (A-C), and helped control the possible ages of the lower unconformities (D and
E). Note the thick middle Eocene and Miocene to Holocene, and the virtually absent Oligocene and
late Eocene sections at this site. TD = total depth.